$sourcedir/Load.php
'online' => array(
'dlh_online' => isset($profile['showOnline']) ? $profile['showOnline'] : 1,
'is_online' => $profile['is_online'],
'text' => &$txt[$profile['is_online'] ? 'online2' : 'online3'],
'href' => $scripturl . '?action=pm;sa=send;u=' . $profile['ID_MEMBER'],
'link' => '<a href="' . $scripturl . '?action=pm;sa=send;u=' . $profile['ID_MEMBER'] . '">' . $txt[$profile['is_online'] ? 'online2' : 'online3'] . '</a>',
'image_href' => $settings['images_url'] . '/' . ($profile['buddy'] ? 'buddy_' : '') . ($profile['is_online'] ? 'useron' : 'useroff') . '.gif',
'label' => &$txt[$profile['is_online'] ? 'online4' : 'online5']
),
--------------------------------------------------
Profile.template.php
<td>', $context['member']['last_login'], ': ', $context['member']['online']['dlh_online'], '</td>
--------------------------------------------------
Added in the "dlh" stuff. If they're allowed to be visible, returns 1, else hidden returns 0